G2 exam prep (GAS TECH)
Study online at https://quizlet.com/_hcwkvg
1. How far should a moisture exhaust duct termi- 36"
nate from a service regulator?
2. What is the maximum allowable concentration 35 ppm
of carbon monoxide permitted in greenhouses
3. Where is the input rating of a range located on the rating plate
4. When can a dryer moisture exhaust duct be never
screwed together?
5. Which one of the following appliances must be Direct fired make up air heaters
interlocked with exhaust fans so the appliance
cannot operate unless the exhaust fans are
operating?
6. What type of protection is required for range No protection required
certified for zero side clearance from com-
bustible material?
7. At what temperature does a door locking 650 F
mechanism in a self-cleaning oven activate?
8. If too many lava rocks are placed on the rack of Burn out prematurely
a barbeque the burner will
9. What safety control protects a steam boiler if Low water cut off
the condensate pump fails to return conden-
sate to the boiler?
10. How tight should a thermocouple connection ¼ turn past tight
be?
11.
, G2 exam prep (GAS TECH)
Study online at https://quizlet.com/_hcwkvg
A temperature control with a narrow differen- Close temperature control and short
tial will cause a very "on" cycles
12. In a normal thermocouple application, the ex- 2-4 millivolts
pected drop out reading is from
13. As the current increases in a conductor the Increases
magnetic field around the conductor
14. With an energized complete circuit, the volt- 0 Volts
age drop across a closed switch is
15. A good pilot generator should produce what 750 mV
voltage?
16. What action should be taken when testing Replace the control valve
the control system on a water heater which
is not working, and the following results are
obtained?
Open circuit test: 20 mV
Closed circuit test: 13 mV
Drop out test: 10 mV
17. The maximum allowable voltage drop across a 10 mV
closed limit switch in a power pile circuit is:
18. The maximum dropout voltage of a thermo- 4 mV
couple should not exceed:
19. The minimum closed - circuit test reading of a 10 mV
thermocouple should be?
, G2 exam prep (GAS TECH)
Study online at https://quizlet.com/_hcwkvg
20. The maximum open test reading of a power - 750 mV
pile should be
21. If a relay coil designated R2 is energized, it will R2 contacts to change position
cause all:
22. A diaphragm meter measures gas flow by: Positive displacement
23. The pressure relief valve on a propane tank has 250 PSI
a relief valve discharge setting of:
24. High moisture levels in a house may be caused All of the listed choices
by:
25. Combustion air that is taken from the house is Outside air by infiltration
replaced with:
26. The function of an air barrier in a building is to: Reduce air leakage into a building
27. The term used to refer to air entering a house: Infiltration
28. What happens to the stack effect when the An increase in air pressure in the up-
temperature difference between indoors and per levels occurs
outdoors increases
29. What term is used to refer to air exiting the Exfiltration
house?
30. The neutral pressure point in a building is: The level or point where the air pres-
sure is zero in a building
31. The best way to limit the problems caused by Seal the upper building envelope
the "Stack" effect on vented appliances is to: with an air barrier and caulking
32.
Study online at https://quizlet.com/_hcwkvg
1. How far should a moisture exhaust duct termi- 36"
nate from a service regulator?
2. What is the maximum allowable concentration 35 ppm
of carbon monoxide permitted in greenhouses
3. Where is the input rating of a range located on the rating plate
4. When can a dryer moisture exhaust duct be never
screwed together?
5. Which one of the following appliances must be Direct fired make up air heaters
interlocked with exhaust fans so the appliance
cannot operate unless the exhaust fans are
operating?
6. What type of protection is required for range No protection required
certified for zero side clearance from com-
bustible material?
7. At what temperature does a door locking 650 F
mechanism in a self-cleaning oven activate?
8. If too many lava rocks are placed on the rack of Burn out prematurely
a barbeque the burner will
9. What safety control protects a steam boiler if Low water cut off
the condensate pump fails to return conden-
sate to the boiler?
10. How tight should a thermocouple connection ¼ turn past tight
be?
11.
, G2 exam prep (GAS TECH)
Study online at https://quizlet.com/_hcwkvg
A temperature control with a narrow differen- Close temperature control and short
tial will cause a very "on" cycles
12. In a normal thermocouple application, the ex- 2-4 millivolts
pected drop out reading is from
13. As the current increases in a conductor the Increases
magnetic field around the conductor
14. With an energized complete circuit, the volt- 0 Volts
age drop across a closed switch is
15. A good pilot generator should produce what 750 mV
voltage?
16. What action should be taken when testing Replace the control valve
the control system on a water heater which
is not working, and the following results are
obtained?
Open circuit test: 20 mV
Closed circuit test: 13 mV
Drop out test: 10 mV
17. The maximum allowable voltage drop across a 10 mV
closed limit switch in a power pile circuit is:
18. The maximum dropout voltage of a thermo- 4 mV
couple should not exceed:
19. The minimum closed - circuit test reading of a 10 mV
thermocouple should be?
, G2 exam prep (GAS TECH)
Study online at https://quizlet.com/_hcwkvg
20. The maximum open test reading of a power - 750 mV
pile should be
21. If a relay coil designated R2 is energized, it will R2 contacts to change position
cause all:
22. A diaphragm meter measures gas flow by: Positive displacement
23. The pressure relief valve on a propane tank has 250 PSI
a relief valve discharge setting of:
24. High moisture levels in a house may be caused All of the listed choices
by:
25. Combustion air that is taken from the house is Outside air by infiltration
replaced with:
26. The function of an air barrier in a building is to: Reduce air leakage into a building
27. The term used to refer to air entering a house: Infiltration
28. What happens to the stack effect when the An increase in air pressure in the up-
temperature difference between indoors and per levels occurs
outdoors increases
29. What term is used to refer to air exiting the Exfiltration
house?
30. The neutral pressure point in a building is: The level or point where the air pres-
sure is zero in a building
31. The best way to limit the problems caused by Seal the upper building envelope
the "Stack" effect on vented appliances is to: with an air barrier and caulking
32.
